LU87385A1 - AUTOMATIC LANCES CHANGER - Google Patents

Description

g J 2 ß $ GRAND-DUCHÉ DE LUXEMBOURG BL 4167

Brevej ^ i ...... 'Monsieur le Ministre -, du .................................. .................................................. ......... rsM18C 'de l'Economie et des Classes Moyennes, Service de la Propriété Intellectuelle

Titre délivré ................................................ ........ Luxembourg

Demande de Brevet d'invention -----............. — ......................... .................................................. ........-.................... <1) I. Requête

La société dite: Paul Wurth S.A.

.................................................. ................................ 32 rue- d, Alsace, -LÜXEMBOüRG --------- -------------------------------------------------- ---------------------- (2) reprësentêeparE.T, -FreylingerA-E »Meyers1 Ing1 eonss ....... en ..... props ....... ind; 1 ------ 46 rue duGimetière »lOH Luxembourg-, agissant enqualité'de --------------------- -------------- ..... MANDATAIRES .............................. .................................................. .................................................. .................................................. .......................... (3) ..................... ............................... ge £ ..2.e ..... öö ~ ö ^ .is. ..... gi. £ ..2 ...... gggg · ..... ggg ^ ..... quatre ^^ ngï ^ aCf ............. .................................................. ...............................

dépqsefat) ce ............................................... .................................................. .................................................. .................................................. .....1............................................ .................................................. ....... (4) à ....................................... ..heures, au Ministère de l'Économie et des Classes Moyennes, à Luxembourg: 1. 'ÎApfâsaat iepiêee concernant: ......................... .................................................. .................................................. .................................................. .................................................. .................................................. .................................................. ................................. (5) .............. .................................................. ..................................... Everyone ............ ......................................... .......

2. la description en langue ............................................ ..........................-....................... ........................ de l'invention en trois exemplaires; 3. ................................................ ...................... planches de dessin, en trois exemplaires; ^ ^ 1988 4th la quittance des taxes versées au Bure | udyjgmre ^ strement à Luxembourg, le ..... septembre xggg '5th la délégation de pouvoir, datée de ............. .................................................. ................................................. le ............................... ............. — ..... ................; 6. le document d’ayant cause (authorization); déclare! nt) en assumant la responsabilité de cette déclaration, que l '(es) inventeur (s) est (sont): (6) rqfrendique (nt) pour la susdite demande de brevet la priorité d'une (des) demande ( s) de (7) ........................... / ................ .................................................. ......................— déposée (s) en (8) ______________________________________________________________________________________________________________________ le (9) -------------- ------------------------- f ........................ .................................................. .................................................. .................................................. .....................................

sous le N ° (10) ........ f ._________________________________________________________________________________________________________________________________________________________________________________________________________________ au nom de (11) .......................... .................................................. .................................................. .................................................. ......................

élfcfcliaMBt) Æanigtpncttièréellel64ii déakaéaocra-gm mandataire, à Luxembourg ........................................ ........................................

-------------------------------------------------- -------------------------------------------------- -------------------------------------------------- -------------------------------------------------- ------------------------------------------- (12) soHicite (nt) la délivrance d'un brevet d'inventif pog ^ ljc ^ bjet décrit et représenté dans les annexes susmentionnées, ayggtjgtgfcanent de cette délivrance à ....................... .................................................. .................................................. .................................................. ..mois. (13)

Le ^ éposiriin mMdatäire: .Z ........................................... .................................................. .................................................. .................................................. .............................................. (14) I / jLJ // ILU YYAsJ Π. Procès-verbal de Dépôt

La syrediteraemande de brevet d’invention a été déposée au Ministère de l’Économie et des Classes Moyennes, _. J7, _ T.,. J „„, T,,, lo novembre 1988

Service de la Propriété mtellectuelle = à, Luxembourg, en date du:, / Q · - '· - 15 · 00 j? , 4 /. '··,'> \ Pr. Le Ministre de l’Économie et des Classes Moyennes, ./ «s? \ -¾ \ à ...................................... heures a%: S '1 P · d.

! a {v & ijS / 1, · ί 1 ’a r I Ί J Le chef du service de la propriété intellectuelle, ^’ ···· ... fj A68007_ ·. 'x.Jj / _ EXPLICATIONS RELATIVES AU FORMULAÎRE-rife (1) s'il ya lieu "Demande de certificat d'addition au brevWlWÎÎllTpul, il la demande de brevet principal No ............ du ............ ”- (2) inscrire les nom, prénom, profession, ^ address du demandeur, lorsque celui-ci est un particulier ou les dénomination sociale, formme juridique, address du siège social, lorsque le demandeur est une personne morale - (3) inscrire / Ο λ s1 les nom, prénom, adresse du mandataire agrée, conseil en propriété industrial, muni d'un pouvoir spécial, s'il ya lieu: "représente par ... ......... agissant en qualité de mandataire ”X / LO“ date de dépôt en toutes lettres - (5) titre de l'invention - (6) inscrire jes noms, prénoms, adresses des inventeurs ou l ' indication "(voir) désignation séparée (suivra)”, lorsque la dési gnation se fait ou se fera dans un document sépare, ou encore l'indication "ne pas mentionner”, lorsque l'inventeursigne ousignera un document de non-mention à joindre à une désignation BL -4167 Mémoire descriptif déposé à l'appui d'une demande de brevet pour

AUTOMATIC LANCES CHANGER

déposée au nom de Paul Wurth S.A.

32 rue d'Alsace LUXEMBOURG

;

AUTOMATIC CHANGING DEVICE

The invention relates to an automatic lance changing device, in particular for lances to be coupled and fastened to a vertically displaceable lance carrier carriage in the steel production by means of an inflation process, the coupling substances on the lance carrier carriage being supplied with the materials required for freshening, and optionally also a cooling fluid, and on the Coupling point 10 are transferred between the coupling head and the upper part of the lance, and the coupling and fastening of the lances to the coupling head of the lance carrier slide is carried out by means of at least two pivot bolts with associated nuts.

15 Document LU-69797 is a novel one

Lance of the aforementioned type has become known, which has the great advantage over the prior art that, despite the presence of a plurality of channels for the supply of said substances and fluids, it can be connected to the associated coupling head in a single operation , This operation in the described embodiment consists of the manual fastening of a swivel boating connection on both sides of the upper part of the lance.

If this swivel pin connection also fulfills its intended purpose perfectly, then its manual operation includes several disadvantages.

30 First of all, manual release and

Tightening the nuts and pivoting the bolts in view of the point at which these processes occur involves a latent risk of accidents, then the manual procedure 35 takes up a not inconsiderable expenditure of time with a corresponding reduction in productivity of the system, and finally also has to The appropriate personnel are available at the appropriate time to carry out this work.

5 Document LU-86985 therefore proposes a device for automating the lance changing process, which in itself works completely satisfactorily, but with this device a completely different fastening mode is provided, 10 that is to say that a pivot pin system is no longer used, so that existing systems , which are equipped with the pivot pin fastenings, can not be automated while maintaining this advantageous, because simple system 15. The device proposed in this last-mentioned document also implies a considerable construction effort.

To avoid these disadvantages of the prior art, it is an object of the invention to propose an automatic lance changing device of the type mentioned in the introduction, in which the fastening process is automated with the simplest means while maintaining the proven pivot pin fastening.

25 This object is achieved, starting from a lance changing device of the type mentioned by the features listed in the characterizing part of the main claim.

An embodiment of the invention is in the 30 drawings, in which the same parts are shown with the same reference numbers, and will be described in more detail below. Show it :

Figure 1, a partial side view, partly in section, the coupling head and the lance and 35 of a pivotable chassis in the pivoted 3 (solid lines) or swung out (dash-dotted lines) position;

Figure 2 is a partial front view of the object of Figure 1 with the chassis in the pivoted 5 position;

Figure 3, a plan view corresponding to the side view of Figure 1.

For the following description, consider the three figures advantageously simultaneously.

10 An essentially rectangular chassis 10 (chassis 10 'hidden, see FIG. 3 for this purpose), which is visible in FIGS. 1 and 2, consists of two crossbars 12 and 14, and two high crossbars 16 and 18, which connect the two crossbars in a bridge-like manner 15. The upper crossbar 12 is welded to the upper part of the pivot pin 20, as is typically provided in the context of the invention for fastening the lance 22 on both sides of the coupling head 24. The pivot pin 20 20 is about its horizontal suspension axis 26

Coupling head 24 can be pivoted.

A motor, for example a pneumatic motor 28 with a vertical shaft 30, is suspended on the lower crossbar 14, this shaft being firmly connected via suitable connecting means, such as a flange 32, which is welded to a nut 34 assigned to the bolt 20.

Because of the construction described above, the chassis 10 forms a unit with the bolt 12 and the pneumatic motor 30 28, which can be pivoted as a whole. The pivoted-out position is shown in FIG. Of course, the description of the chassis 10 applies analogously to the opposite chassis 35 10 ′, which is only indicated in FIG. 3.

r 4

The pivoting of the chassis 10 together with the bolt 20 and the pneumatic motor 28 is done by a linear motor, for example a pneumatic cylinder 30 which. is articulated on the coupling head 24 and acts on a boom 38 welded on the side to the high crossbeam 18.

When replacing a worn lance with a new one, the following processes now take place: first, the lance is supported by a transfer device (not shown) on its support bolts 40 on both sides, so that the nuts 34, 34 'are loosened by means of the pneumatic motors 28, 28' can. After the release of the bolt 20, the flange 32 / nut 34 has the position indicated at 42 in the dot-dash line 15, after which the entire chassis 10 can be pivoted out into the position shown in dash-dot line in FIG. 1 (of course, the same happens synchronously on the chassis 10 ').

20 The lance is now fully released and can be removed from the transfer device, not shown. A new lance is now brought into position below the coupling head 24, likewise with the aforementioned transfer device, whereupon the chassis 10, 25 10 'are pivoted back with the aid of the pneumatic motors 36, 36' and the nuts 34, 34 'with the aid of the pneumatic motors 28 , 28 'can be tightened.

According to the invention, the pneumatic motors 28, 28 'are equipped with torque limiters which switch off the 30 motors when the nuts 34, 34' have reached a certain tightening torque. After this

Switch off and remove the transfer device, the new lance is now ready for use.

As can be seen from the above description, it is possible in a simple manner with the device according to the invention to fully automate existing swivel pin systems by attaching the chassis described with their standard actuating units, also with the existing coupling head apart from the attachment of fastening devices. 5 points 44 for the pneumatic cylinders 36, 36 'none

Transformations need to be made.

Claims (7)

6 1. Automatic lance changing device, in particular for lances to be coupled and fastened to a vertically movable lance carriage in the steel production by means of an inflation process, with the coupling materials on the lance carrier carriage being supplied with the materials required for freshening and possibly also a cooling fluid the coupling point between the coupling head and 10 lance upper part are transferred to the latter, and the coupling and fastening of the lances to the coupling head of the lance carrier slide is carried out by means of two pivot bolts with assigned nuts, characterized in that each of the 15 pivot bolts (20, 20 ') also a chassis (10, 10 ') which can be pivoted together with it forms a mechanical unit that on this chassis (10, 10') has a first drive motor (28, 28 ') for releasing and tightening the bolts (20, 20') Mut-20 ter (34,34 ') is firmly mounted so that the pivot pin (20,20') together with it assigned chassis (10, 10 ') and the first drive motor (28, 28') mounted thereon as a whole by means of a second drive motor (36, 36 ') after loosening the nut (34, 34') around the horizontal pivot axis (26,26 ') of the pivot pin (20,20') can be pivoted. 2. Automatic lance changing device according to claim 1, characterized in that the chassis 30 (10, 10 ') essentially consist of upper cross members (12, 12'), which are welded to the bolts (20, 20 '), lower cross members (14 , 14 '), on which the drive motors (28, 28') are suspended, and each of two vertical cross beams V Ί (16, 16 ', 18, 18') / which the two cross beams (12, 12 ', 14 , 14 ') connect to each other like a bridge. 3. Automatic lance changing device according to claims 1 and 2, characterized in that 5 the nuts (34, 34 ') form a mechanical unit with the extended shafts (30, 30') of the first drive motors (28, 28 '). 4. Automatic lance changing device according to claims 1 to 3, characterized in that 10 said first drive motors (28,28 ') are each provided with a torque limiter, which automatically switches off the motors at a specific tightening torque of the nuts (34,34'). 5. Automatic lance changing device according to claims 1 to 4, characterized ..... characterized in that said first drive motors (28, 28 ') are pneumatic motors. 6. Automatic lance changing device according to claims 1 and 2, characterized in that 20 the second drive motors (36, 36 ') for pivoting the chassis (10, 10') about the horizontal pivot axis (26, 26 ') of the pivot bolts (20 , 20 ') on brackets (38, 38') which are attached to the upper part of the high beams (18, 18 '). 7. Automatic lance changing device according to claims 1, 2 and 6, characterized in that said second drive motors (36,36 ') are pneumatic motors which are articulated on the coupling head (24).